Eupithecia horismoides is a moth in the family Geometridae. It is found in the regions of Araucania (Cautin Province), 1991: The Eupithecia (Lepidoptera, Geometridae) of Chile. 2. American Museum Novitates 3020: 1-14. Full article: . and Los Lagos (the provinces of Osorno, Llanquihue, and Chiloe) in Chile., 1987, The Eupithecia (Lepidoptera, Geometridae) of Chile. Bulletin of the American Museum of Natural History 186 (3): 269-363. The habitat consists of the Northern Valdivian Forest and Valdivian Forest Biotic provinces.
The length of the forewings is about 14–16 mm for males and 14.5-16.5 mm for females.
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